A-3 List Of Nx Objects; A-3-1 Format Of Nx Object Descriptions; A-3-2 System Units; Format Of Nx Object Descriptions - Omron sysmac NX Series User Manual

A-3 List of NX Objects

This section describes the NX objects of the System Units.
The method to access NX objects through instructions or other messages depends on where the NX
Unit is connected.
If the NX Unit is connected to a CPU Unit, access is possible with the Read NX Unit Object instruction
and the Write NX Unit Object instruction.
When the NX Unit is connected to a Communications Coupler Unit, the method depends on the con-
nected communications master and Communications Coupler Unit.
Refer to the user's manual for the connected Communications Coupler Unit for method to use mes-
sages to access NX objects on Slave Terminals.
Refer to the NX-series Communication Control Unit Built-in Function User's Manual (Cat. No. Z396)
for the method to use messages to access NX objects of NX Units connected to a Communication
Control Unit.
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Format of NX Object Descriptions

In this manual, NX objects are described with the following format.
Index Subindex
(hex) (hex)
Index (hex)
Subindex (hex)
Object name
Default value
Data range
Unit
Data type
Access
I/O allocation
Data attribute
A-3-2

System Units

Unit Information Objects
These objects are related to product information.
NX-series System Units User's Manual (W523)
Default
Object name
value
: This is the index of the NX object that is expressed as a four-digit hexadecimal
number.
: This is the subindex of the NX object that is expressed as a two-digit hexadecimal
number.
: This is the name of the object. For a subindex, this is the name of the subindex.
: This is the value that is set by default.
: For a read-only (RO) NX object, this is the range of the data you can read. For a
read-write (RW) NX object, this is the setting range of the data.
: The unit is the physical units.
: This is the data type of the object.
: This data tells if the object is read-only or read/write.
RO: Read only
RW: Read/write
: This tells whether I/O allocation is allowed.
: This is the timing when changes to writable NX objects are enabled.
Y: Enabled by restarting
N: Enabled at all times
---: Write-prohibited
Data
Data range Unit
type
Appendices
Ac- Data
I/O allo-
ces attrib-
cation
s ute
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